Pressure gauge



FIG. 1 is a top and left side perspective view of a pressure gauge showing our new design;

FIG. 2 is a bottom and right side perspective view thereof;

FIG. 3. is a top plan view thereof;

FIG. 4. is a bottom plan view thereof;

FIG. 5 is a left side elevation thereof;

FIG. 6 is a right side elevation thereof;

FIG. 7 is a front elevational view thereof; and,

FIG. 8 is a rear elevation view of the pressure gauge. 

I claim the ornamental design for a pressure gauge, as shown and described. 